日产公爵轿车(SD23型柴油机)电喇叭不响,其故障排除方法如下: 拔下喇叭继电器插座(图1),用试灯检查继电器座上的电源是否有电,如果无电,说明是插片1到保险丝这一根电源线断路或保险丝开路;如果有电,可将电流直接送入插片2,试听喇叭是否响,喇叭不响说明故障发生在插片2到喇叭处。喇叭响音很低,就要检查调整喇叭。当1和2接通后喇叭响声正 Nissan Duke sedan (SD23 diesel engine) does not ring the speaker, the troubleshooting is as follows: Unplug the relay socket (Figure 1), with the test light to check the power supply on the relay seat is power, if there is no electricity, 1 to fuse the power line open circuit or fuse open; if there is electricity, the current can be directly into the insert 2, audition horn is ringing, the speaker does not ring that fault occurs in the insert 2 to the speaker. Speaker sound is very low, we must check to adjust the speaker. When 1 and 2 connected horn loudly positive